Share Email Print
cover

Proceedings Paper

Omnidirectional vibration sensor based on fiber Bragg gratings in a seven-core fiber
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

We report an orientation-sensitive omnidirectional vibration sensor based on fiber Bragg gratings (FBGs) inscribed in a seven-core optical fiber. By monitoring the central wavelength shifts of three FBGs in the central core and two outer cores, orientation information in 0-180° range as well as the acceleration value are obtained. The performance of the vibration sensor is characterized at different frequencies, orientations and accelerations. Comparison results for orientation discrimination using different groups of outer cores are investigated to enhance the reliability of the vibration sensor. The experimental results demonstrate an accuracy as high as 0.01° for orientation discrimination. The compact size and simple structure make the vibration sensor potentially superior in industrial applications where precise monitoring of the orientation is a necessity.

Paper Details

Date Published: 28 August 2019
PDF: 4 pages
Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111992P (28 August 2019); doi: 10.1117/12.2538864
Show Author Affiliations
Jingxian Cui, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Zhengyong Liu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Dinusha Serandi Gunawardena, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 11199:
Seventh European Workshop on Optical Fibre Sensors
Kyriacos Kalli; Sinead O. O'Keeffe; Gilberto Brambilla, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray